diff --git a/.travis.yml b/.travis.yml
index b533da3191e75912e6d34f8c0bdd4a1212e684f9..a7b78e3780c699cfe601bc92665139917a882cac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -92,12 +92,12 @@ matrix:
       env: BINDINGS=cpp CC=clang
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get install lcov
+  - sudo apt-get install -y lcov
   - gem install coveralls-lcov
   - if [ "$BINDINGS" != "none" ]; then sudo apt-get install -qq swig; fi
   - if [ "$BINDINGS" == "perl" ]; then sudo add-apt-repository ppa:dns/irc -y; sudo apt-get update -qq; sudo apt-get install -qq swig=2.0.8-1irc1~12.04; fi
   - if [ "$BINDINGS" == "python" ]; then sudo apt-get install -qq python-dev; fi
-  - if [ "$BINDINGS" == "dotnet" ]; then sudo add-apt-repository ppa:directhex/monoxide -y; sudo apt-get update -qq; sudo apt-get install -qq mono-devel mono-mcs nunit nunit-console; mozroots --import --sync; fi
+  - if [ "$BINDINGS" == "dotnet" ]; then sudo add-apt-repository ppa:directhex/monoxide -y; sudo apt-get update -qq; sudo apt-get install -y -qq mono-devel mono-mcs nunit nunit-console; mozroots --import --sync; fi
 install: true
 before_script:
   - if [ "$BINDINGS" == "php" ]; then phpenv config-add src/bindings/php/hammer.ini; fi